package com.example.demo.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@ResponseBody
public class UserController {

    // 得到日志对象
    private final static Logger log =
            LoggerFactory.getLogger(UserController.class);

    @RequestMapping("/sayhi")//这里不能有大写
    public String sayHi(){
        log.trace("我是trace");
        log.debug("我是debug");
        log.info("我是info");
        log.warn("我是warn");
        log.error("我是error");
        return "End";
    }
}
